7,123 research outputs found

    Service Orientation and the Smart Grid state and trends

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    The energy market is undergoing major changes, the most notable of which is the transition from a hierarchical closed system toward a more open one highly based on a “smart” information-rich infrastructure. This transition calls for new information and communication technologies infrastructures and standards to support it. In this paper, we review the current state of affairs and the actual technologies with respect to such transition. Additionally, we highlight the contact points between the needs of the future grid and the advantages brought by service-oriented architectures.

    Regional Data Archiving and Management for Northeast Illinois

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    This project studies the feasibility and implementation options for establishing a regional data archiving system to help monitor and manage traffic operations and planning for the northeastern Illinois region. It aims to provide a clear guidance to the regional transportation agencies, from both technical and business perspectives, about building such a comprehensive transportation information system. Several implementation alternatives are identified and analyzed. This research is carried out in three phases. In the first phase, existing documents related to ITS deployments in the broader Chicago area are summarized, and a thorough review is conducted of similar systems across the country. Various stakeholders are interviewed to collect information on all data elements that they store, including the format, system, and granularity. Their perception of a data archive system, such as potential benefits and costs, is also surveyed. In the second phase, a conceptual design of the database is developed. This conceptual design includes system architecture, functional modules, user interfaces, and examples of usage. In the last phase, the possible business models for the archive system to sustain itself are reviewed. We estimate initial capital and recurring operational/maintenance costs for the system based on realistic information on the hardware, software, labor, and resource requirements. We also identify possible revenue opportunities. A few implementation options for the archive system are summarized in this report; namely: 1. System hosted by a partnering agency 2. System contracted to a university 3. System contracted to a national laboratory 4. System outsourced to a service provider The costs, advantages and disadvantages for each of these recommended options are also provided.ICT-R27-22published or submitted for publicationis peer reviewe

    Reflectance Transformation Imaging (RTI) System for Ancient Documentary Artefacts

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    This tutorial summarises our uses of reflectance transformation imaging in archaeological contexts. It introduces the UK AHRC funded project reflectance Transformation Imaging for Anciant Documentary Artefacts and demonstrates imaging methodologies

    Modern Information Systems

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    The development of modern information systems is a demanding task. New technologies and tools are designed, implemented and presented in the market on a daily bases. User needs change dramatically fast and the IT industry copes to reach the level of efficiency and adaptability for its systems in order to be competitive and up-to-date. Thus, the realization of modern information systems with great characteristics and functionalities implemented for specific areas of interest is a fact of our modern and demanding digital society and this is the main scope of this book. Therefore, this book aims to present a number of innovative and recently developed information systems. It is titled "Modern Information Systems" and includes 8 chapters. This book may assist researchers on studying the innovative functions of modern systems in various areas like health, telematics, knowledge management, etc. It can also assist young students in capturing the new research tendencies of the information systems' development

    Web Server for Protein Interaction Searching

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    Tato prĂĄce se zabĂœvĂĄ zbĆŻsoby, jimiĆŸ je moĆŸnĂ© zĂ­skĂĄvat data z bioinformatickĂœch databĂĄzĂ­ obsahujĂ­cĂ­ch data tĂœkajĂ­cĂ­ch se interakcĂ­ mezi proteiny. Od souvislostĂ­ okolo vzniku bioinformatiky sloučenĂ­m informatiky a biologie tato prĂĄce uvede čtenáƙe do problematiky pƙístupu k datĆŻm tĂœkajĂ­cĂ­ch se interakcĂ­ mezi proteiny. Tato prĂĄce vysvětlĂ­ dĆŻvody vzniku IMEx konsorcia, jeho cĂ­le a prostƙedky, kterĂœmi svĂœch cĂ­lĆŻ dosahuje. IMEx konsorcium dalo vzniknout mnoha standardĆŻm, kterĂ© usnadƈujĂ­ pƙístup k datĆŻm členĆŻ konsorcia a vĂœměnu těchto dat mezi nimi. JednĂ­m z vĂœtvorĆŻ IMEx konsorcia je i webovĂĄ sluĆŸba PSICQUIC, kterĂĄ byla navrĆŸena s vyuĆŸitĂ­m architektonickĂ©ho stylu REST, a kterĂĄ je pƙístupnĂĄ i pomocĂ­ protokolu SOAP. Obě tyto kategorie pƙístupĆŻ k webovĂœch sluĆŸbĂĄm jsou v rĂĄmci tĂ©to prĂĄce studovĂĄny a na zĂĄkladě vĂœsledkĆŻ vĂœzkumu je implementovĂĄna aplikace pro zĂ­skĂĄvĂĄnĂ­ interakcĂ­ mezi proteiny z databĂĄzĂ­, jenĆŸ jsou členy IMEx konsorcia.This thesis deals with different possibilities, how to collect data from bioinforatics databases containing protein interaction data. Reader is put into context by introducing him problematics of emergence of bioinformatics by connecting two fields of human knowledge: biology and informatics. Then the reader will get acquainted with the importance of protein interactions and possible ways of retrieving protein interaction data from protein interaction databases. This thesis also elucidates the motivation for IMEx consortium existence. IMEx faciliattes access to data and data exchange between its members by issuing new standards and data formats. I a list of IMEx consortium sucecsses is also PSICQUIC web service. PSICQUIC is REST-compliant web service, which can be also accessed via SOAP protocol. Both REST and SOAP approaches are studied and compared in this thesis and on the basis of this research is implemented application for retreiving protein interaction data from PSICQUIC members' databases.

    Revista Economica

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    Web services approach for ambient assisted living in mobile environments

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    Web services appeared as a promising technology for Web environments independent of technologies, services, and applications. First, a performance comparison study between the two most used Web service architectures, SOAP and REST, is presented, considering messages exchange between clients and a server. Based on this study, the REST architecture was chosen to deploy the system because it gets better results compared to SOAP architecture. Currently, there are some issues related with this approach that should be studied. For instance, if massive quantities of data are sent to databases it can influence significantly the performance of the whole system. The Advanced Message Queuing Protocol (AMPQ) appears as a promising solution to address this problem. Then, in order to evaluate the performance of this approach, this work presents a performance evaluation and a comparison study of RESTful Web services and the AMQP Protocol considering exchanging messages between clients and a server. The study is based on the averaged exchanged messages for a certain period of time. It was observed and concluded that, for large quantities of messages exchange, the best results comes from the Advanced Message Queuing Protocol. Message Queuing Telemetry Transport (MQTT) was addressed in this work because it is a similar protocol to AMQP but it can be used by mobile devices with a processing capacity smallest unlike the AMQP that needs greater processing capacity. These studies are performed in the context of Ambient Assisted Living environments, since the work was applied to this topic in order to experiment the effectiveness and evaluate the performance of these protocols in this scenario

    System for acquisition, processing and presentation of energy consumption

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    Tese de mestrado integrado. Engenharia Electrotécnica e de Computadores (Major TelecomunicaçÔes). Faculdade de Engenharia. Universidade do Porto. 200
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